HARRIS : CRAYFISHES — GENUS CAMBARUS. 123 



Hay ('96) says: ''This species has very much the same 

 habits as C. propinquus, and the two are often found in com- 

 pany." 



Oambarus setosus Fax. 



24. Missouri. 



1. Wilson's cave and in wells, Jasper county. (Garman, '89, and Faxon, '90.) 

 ?2. In stream from cave on branch of Finley creek, cave region of Christian 

 county, near Ozark. (Broadhead, '74). Referred to this species on account 

 of locality by Faxon ('90). 



So far as yet known, this species is confined to the south- 

 western portion of Missouri. Jasper county (24, 1) is drained 

 west into the Neosho or Grand river, which flows south 

 through Indian Territory into the Arkansas, while Finley 

 creek empties into James fork of White river, which enters 

 the Mississippi at about the same point as the Arkansas. 

 While in Greene county, Missouri, in the spring of 1901, I was 

 told that there occur wiiite crayfish in Galloway cave (for de- 

 scription see C. neglectus) , but was unable to secure any speci- 

 mens. The stream flowing from Galloway cave, at Galloway, 

 about eight miles southeast of Springfield, empties into the 

 James river, so that the two localities, about twenty miles 

 apart, are directly connected by water. It may be that very 

 light specimens of C. neglectus have been sometimes mistaken 

 for ''white crayfish." 



C. setosus was described by Faxon in Garman's paper ('89), 

 and again in his own paper ('90), from material collected in 

 wells and caves in southwestern Missouri by Miss Ruth Ho'ppin, 



Garman ('89) says: "The cave belt of Missouri is 150 or 

 more miles in width, and extends diagonally quite across the 

 state from northeast to southwest. . . . The geological 

 position of the caves ranges from the St. Louis limestone of the 

 Lower Carboniferous to the third magnesian limestone of the 

 Lower Silurian. . . . The caves appear to become more 

 extensive and more numerous toward the southwestern portion 

 of the state. . . , The statement is rnade that Conner's 

 cave, in Boone county, has been explored for a distance of eight 

 miles. . . . The sink-holes with which so many of the cav- 

 erns are connected prove the manner of forming to have been 

 the same as that giving rise to the Mammoth and other caves 

 of Kentucky. . . . There seems to be no reason to suppose 



